The process by which monomers combine end-to-end-to form polymer is called____

Cellulose is a polymer of_____

Haemoglobin is formed by_____ which is the building blocks of proteins.

A_____ is a kind of thread which is strong and flexible enough to make clothes.

Which of the following is synthetic fibre?

Which of the following is natural fibre?

Which of the following is known as artificial silk?

Select the first man made semi synthetic fibre from the options given below.

Rayon is obtained from a natural source like_________

Viscose, Cuprammonium (or cupro) and Acetate are the varieties of_____

_____fibre is a substitute for natural wool

Mixing of two different kinds of fibres will produce______fibres.

Polyester and cotton are mixed to form_______

The property of materials by which they can be moulded into any shape is called________

A pure substance that consist only one kind of atoms is called an________

Metals are__________

Non-metals are________

Which of the following is a non-metal?

Metalloids possess the properties of_______

The most reactive metal is________

Which of the following metal is stored in kerosene?

The non-metal which is liquid at room temperature is_______

Which metal is used in wrapping materials?

The metal found in liquid state is_______

The most ductile metal is___________

Which is the hardest substance?

The property of metals by which they can be beaten into thin sheets is called__________

Which of the following does not show the property of malleability?

The metals that produce ringing sounds are said to be_______

Which of the following is a non-renewable source of energy?

Fossil fuels are_______

Which of the following minerals is present in coal?

How much percentage of carbon is present in bituminous?

Petroleum is also known as______

The major constituent of natural gas is__________

The product obtained by destructive distillation of coal is_________

The petroleum product which is not used as fuel is_______

Name the petroleum product used for Metalling roads.

Which is the best type of coal?

Inexhaustible natural resources in
nature are_________

Fossils are the_________

Which of the following places has a network of pipelines which supply CNG?

What is the full form of PCRA?

When coal burns in air_______gas is formed

The property due to which a substance conducts heat and electricity is called as_______

_____ and ____ are used to make jewelleries and ornaments.

A mixture of two or more metals or a metal and non metal is called as______

Bronze is a mixture of _____ and ______

Iron, Nickel and Chromium are mixed to produce______